Question

When transmitting messages from a point A to a point B, out of every 40 messages
6 need to be corrected by applying error correcting codes. What is the probability
that in a batch of 200 messages sent from A to B, there will be between 38 and 42
messages that will have to be corrected.

Answer 1

p(number of messages will lie bw 38 and 42)

Answer 2

n=200

Answer 3

stuck...